Lub thermal conductivity thiab kub tsis kam ntawm graphite crucibles kuj zoo. Thaum siv qhov kub thiab txias, qhov coefficient ntawm thermal expansion yog me me, thiab nws muaj peev xwm ua rau muaj peev xwm ua kom kub ceev thiab txias. Nws muaj zog corrosion kuj mus rau acid-base daws teeb meem thiab zoo tshuaj stability. Dav siv nyob rau hauv metallurgical, casting, mechanical, tshuaj thiab lwm yam kev lag luam sectors rau smelting ntawm alloy cuab yeej hlau thiab non-ferrous hlau thiab lawv alloys. Thiab nws muaj qhov zoo technical thiab economic teebmeem.
Nyob rau hauv cov ntaub ntawv ntawm ultra-siab kub induction cua sov, cov electrodes siv nyob rau hauv high-temperature oxidation ib puag ncig yuav undergo ib feem sublimation oxidation vim high-temperature arcs, uas ua rau kom tas mus li noj. Txawm tias nws puas los yog puas lawm, tus nqi poob yuav ncav cuag 40-60%. Qhov kub-kub sealing txheej tsim thiab tsim tau ntau xyoo yog siv los tiv thaiv oxidation ntawm electrodes, crucibles, thiab qhov chaw nyob rau hauv high-temperature ib puag ncig, ncua oxidation tus nqi, nce cov khoom siv zog, thiab ncua kev pab cuam lub neej. Zoo txo qhov tshwm sim ntawm electrode breakage, breakage, thiab detachment.
Tom qab cov graphite crucible yog coated nrog cov tshuaj tua kab mob antioxidant, lub siab kub ZS-1011 graphite hloov txheej txheej kua tuaj yeem nkag mus rau hauv lub qhov hws ntawm lub crucible, tshem tawm cov cua seem hauv lub crucible thiab tsim pores. Qhov saum npoo ntawm graphite crucible. Antioxidant tiv thaiv zaj duab xis. Nws yog precisely no zaj duab xis tiv thaiv uas muaj peev xwm zoo cais cov huab cua los ntawm kev sib cuag ncaj qha nrog lub crucible thiab ua rau oxidation tshua. Lub crucible impregnated nrog antioxidant txheej yuav tsis tawg los yog poob nyob rau hauv kub hloov pauv, zoo ncua oxidation thiab prolonging lub neej kev pab cuam ntawm graphite crucibles.
Graphite crucible antioxidant txheej, dej-raws li inorganic ib puag ncig tus phooj ywg txheej, tsis tsim cov tshuaj volatile ntawm qhov kub thiab txias. Lub high-temperature sealing txheej nws tus kheej yog acid thiab alkali resistant thiab tsis hnov mob nrog quenching nruab nrab. Nws tuaj yeem tiv thaiv lub crucible zoo los ntawm cov tshuaj tiv thaiv ntawm qhov kub thiab txias thiab tiv thaiv qhov kub ntawm oxidation tus nqi ntawm crucible mus txog 95%.